Edwin e



(No Model.)

.E. R. PARSIL.

BUTTON SHANK OR EYE TESTING MACHINE. No. 314,052. I Patented Mar. 17, 1885.

allwb- V; V I Iiwcnivr 524w- B.P6m-z, 5 Axwwfl N PETERS, Phommnn ra lm. Wnhin mn. D. C. x

Warren S rarns Parent @FFIQE.

EDWIN R. PARSIL, OF NEW'ARK, NEW JERSEY.

BUTTON SHANK OR EYE TESTING MACHINE.

."illiCIFICATEIOEfi forming part of Letters Patent No. 314,052, dated March 17, 1885.

(No moth-l To all whom it may concern.-

Be it known that I, EDWIN It. PARSIL, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Shank or Eye Testing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and'to letters of reference marked thereon, which form a part of this specification;

In the drawings, Figure 1 is a plan of a portion of a testing-machine embodying my invention. Fig. 2 is a side elevation of said machine, the table upon which it is secured being in section. Fig. 3 is an end elevation of said machine, and Fig. 4 shows the bent end of a lever to catch the eye of a but ton to be tested.

The object of the invention is to test or determine the degree of security with which the shanks of certain buttons are attached to the bodies thereof before the said buttons are placed upon the market; and it consists in the machine and in the combinations of parts thereof, substantially as will be hereinafter set forth, and embodied in the clauses of the claims.

The principle in accordance with which the machine operates and upon which it is based consists in holding orsecuring the shank and body of the button in or on separable parts of the testing-machine, so that when force is applied the tendency will be to separate said parts, and with them to disconnect the said shank from said body, the amount of separating force that the button proves itself capable of resisting determining its fitness for the market.

The mechanism which "I have employed to embody this principle consistsof a lever, A, fulcrumed upon suitable fulcrumal standards, a, secured upon the bed B, and moving between two jaws, 0, extending from a base, 0,

' secured to the bed 13. The lever A is connected by the rod (1 to asecond lever, D, pivoted at d to a rod, d depending from the table E, the other end of said lever D being free to more in a guide, d secured near the other end of the table.

Near the free end of thelever D is attached a cord, f, which passes over the pulleys g, and is connected with a treadle, h, at the operating end of the table. A sliding weight, i, is arranged upon the lever D, moving over graduation-marks thereon, as indicated in Fig. 2.

The end of the lever A which moves between the jaws 0 is pointed or tapers to pass into the eye of the button, and is hook-like, to prevent said button from slipping off while being tested.

In the figures of the drawings the relative positions of the several parts of the machine are shown while a button is being tested, the power exerted to separate the shank from the body of the button being shown to be five pounds. Dotted upon Fig. 2 is shown the position of the parts while the button is being adjusted on the hook previous to the testing.

In applying the test the hooked end of the lever A is depressed, as shown in Fig. 2, and the shank of the button is placed thereon, the hook passing through the eye in said shank. The lever is then permitted to rise and the body of the button to strike against the under side of the jaws, exerting a certain amount of force tending to separate the shank from the body of the button. The amount of force is determined by the position of the weight t upon the lever D.

Instead of having the lever A, or the part adapted to engage the shank, movable, Imay arrange said part so as to be fixed, and construct the jaws to exert the force on the button by pivoting the said jaws to the bed and reversing and connecting the free end of the lever D with said jaws, so as to exert a downward pressure upon the button. WVhile this method of carrying out the invention is a practical one, yet I prefer the method de scribed hereinbcforc, and illustrated in the drawings.

WVhere I employ the machine in testing sleeve-buttons or buttons having no eye, but a foot similar to the head, I may employ two pairs of jaws separable from one another; and instead of having one of the separable parts stationary to engage the body and the other movable, I may have both parts separable, as will be evident.

Having thus described the invention, what I claim as new is 1. In a button-testing machine, the combination, with fixed jaws, of a lever adapted to move between said jaws and connect with a weighted lever, and said weighted lever, said parts being arranged and combined substantially as and for the purposes set forth.

2. In combination, the table E, bed B, base 0, jaws a, pointed and hooked lever A, and weighted and graduated lever D, connected to said lever A, substantially as and for the purposes set forth.

have hereunto set my hand this 2d day of October, 1884.

EDWVIN R. PARSIL.

\Vitnesses:

CHARLES H. PELL, JAMES SKIPP. 

